Museum Class Mineral Specimens

Topaz, China Aquamarine, Pakistan Tourmaline, California Tourmaline, Pakistan
Dealers refer to this top ranking of their inventor as "Vault" material, "Museum" grade material, "Top Shelf", and so on. All of these terms are somewhat misleading. If nothing else, you will at least find yourself looking at the exceptional specimens in a dealer's inventory if you follow these titles.
Included here will be specimens noteworthy for their size, form and overall quality. Rarity will sometimes land a specimen in this category, but, that will not usually be the case. Lack of damage will be critical here. Mineral specimens with historic significance, pedigree, or those that have been published in a text or mineralogical journal may also be included here. Prices may vary dramatically, but all these specimens are quite special.
Plenty more to choose from...Pages 2 3 4
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OKI-739 Cerussite Twins on Malachite after Azurite Tsumcorp Mine, Tsumeb, Otikoyo Region, Namibia, Africa. Ex. Nancy Collins Collection circ. 1970. This fine specimen measures 8 x 7.2 x 4.5 cm overall and is composed of numerous twinned and untwined cerussites on a lush carpet of forest green malachite pseudomorphs after azurite. The malachite pseudo are present in two generations: the first generation crystals are large, to 2.7 cm each, and followed by the second generation, much smaller, deeper green pseudos which coat about 30% of the surfaces of the first generation crystals. On this matrix can be found 2 fine clusters of twinned cerussites to 1.8 cm each and one lonely untwined crystal. They all stand off the malachite in high relief. The cerussites are very translucent and have a waxy to silky luster. There is no damage to the primary display face although some of the edge contacts are visible from the front yet not distracting. The backside has some mineralization ,as well. The specimens of malachite after azurite from this mine are known world over as classics. I’ve sold and seen many dozens of these malachites after azurite, but the several of these I now have for sale are the only ones I’ve known of in combination with the cerussites. Comes with a custom engraved acrylic base. $3,500
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OKI-715 Babingtonite, Prehnite and Quartz Near Meigu, Xichang County, Sichuan Prov., China. This amazing piece is certainly a show stopper. Measuring in at 11.3 x 5.5 x 4.2 cm it is the type of cabinet specimen which commands interest. A pleasing mix of species dominated by numerous HUGE babs to 4 cm each, many of which are double terminated and of high luster. Looks like a floater (maybe a small area of contact on some of the prehnite). NO damage. Everything is very clean and attractive. The double terminated quartz crystals scattered about on the specimen add flash. This piece displays wonderfully. It is not every day that killer specimens like this become available at the low price I am asking. You’ll be surprised. Comes with a custom engraved acrylic base. $5,000
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OKI-717 Babingtonite, Prehnite and Quartz SOLD Near Meigu, Xichang County, Sichuan Prov., China. This cluster of large crystals (to just shy of 4 cm each) creates what has to be considered an important piece. They don’t get much more impressive than this one. The specimen is a simple plate of crystals with one area having a small area of crystal contact which isn’t distracting to the overall impressiveness of this monster. 11 x 7.3 x 5 cm overall. Fine luster and superior crystal size but this on the radar of serious collectors who look for the best. There is no question as to what species dominates this specimen with the accessories is small, non-distracting crystals. I could probably write a page on how good this specimen is but won’t. If you have been considering getting one of the best specimens from the top locality for the species in the world…well, here you are. Price on Request
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OKI-707 Tourmaline, Quartz, Cleavelandite and Muscovite Bulachi Mine, near Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan. This specimen is an attractive, double terminated tourmaline of a deep green color that shows moderate translucence. The specimen has a basil pinnicoid termination with a rough texture for its base (it sits smartly on this end) and a steeply terminated opposing end that stands vertically. The piece is nicely striated and of excellent luster. Not a blemish to be found on this excellent specimen. There is a white girdle of albite with minor quartz and mica. There is also a larger fin of albite sticking off of one side. Highly aesthetic and substantial in size. There is close to a kilogram of tourmaline here and it measures approximately 7 x 7 x 7 cm. This fine piece really feels substantial in your hand and is much better in person. From and unusual location. Comes with a custom engraved acrylic base. Top shelf all the way! Perfection! 2,500$
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OKI-704 Tourmaline, Fluorapatite and Albite Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan. This piece is the finest Stak Nala specimen which I have offered for sale. It has two lustrous, major crystals measuring 6.5 and 5.4 cm long each. Both are beautifully double terminated and hemimorphic in their development. Terminations are transparent to translucent and the shades of green color which dominate the tourmalines varies nicely. Aesthetic with its wrappings of feldspar, the final additions to the mix are several small (to .7 cm each) pink fluorapatite crystals. Fluorapatite with tourmalines from Stak Nala are practically unheard of!! Everything is damage free and beautifully formed. There is some minor wax on the albite. Overall measurements are 7.5 x 5 x 3.4 cm. I believe most dealers would have priced this fine, aesthetic grouping far beyond what I have chosen to ask for it. This piece is exceptional and exhibits fine aesthetics…colors, luster, balance, form, diversity of species… its got it all. Even better in person as the pics can't really express how impressive this piece is. Remember, there may be plenty of Stak Nala specimens available, but few will ever come close to the quality of this amazing damage free grouping. Comes with a custom engraved acrylic base. $5,500
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OKD-269 Aquamarine on Muscovite with Tourmaline and Albite Chumar Bakhoor, Nagar, Northern Areas, Pakistan. WOW! This piece has also passed the 10x magnification test and showed up with no damage or contacts. It is a fully terminated floater with lots of branching muscovite, minor white albite and acicular black tourmalines scattered among the muscovite (very noticeable on back view) and in the cap of the primary crystal as shallow inclusions. The tourmalines which include the big crystal run parallel to and just below the surface of its upper termination. The base of this specimen must have once been on matrix but has totally developed into a fully terminated grouping. This base is highly complex in it multiple stepped effect. A great contrast to the simple termination developed on the top of the primary crystal and others within the grouping. Nice clarity near top of piece and it becomes more included toward the base of the crystals. The primary crystal in this piece is 7 cm in length with the overall dimensions of the piece being 7.5 x 7 x 7 cm. A fantastic specimen for any collection. Comes with a custom engraved acrylic base. 1,600$
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OKI-006 Strontianite Francon Quarry, Montreal, Quebec, Canada. Ex. Dr. Steve Chamberlain Collection. Prev. Bill Condon Collection. This is one of the nicest Francon quarry specimen I have ever seen!!! Yes, the weloganites, dawsonites and some others are the rare specimens which gives this quarry its fame but this specimen is definitely in a league of its own. The specimen is completely free of any damage and stands on end. This end may have been once attached to matrix but the specimen appears to me to be a floater with a regrown attachment (either that or its just unusually smooth). It is a yellowish cream color, mildly translucent and has the highest luster for a strontianite specimen that I’ve seen form anywhere! If someone would have told me this was a strontianite, no matter where it was from, I would have questioned it. “No way, it’s not possible”. It's that impressive and far better in hand. This is a museum quality piece which I believe is better than the best specimen photographed for the Francon issue of The Mineralogical Record, in the Redpath Museum, page 45. The specimen could not display better in that it is very stable as viewed in the images. All sides look attractive so you may find yourself turning it in your display case every now and again to appreciate all of its beauty. 5.3 x 4 x 2.5 cm. This is a specimen that is not accessible to all collectors but it is certainly one that can be appreciated by all. I wouldn’t trade this specimen for my very best weloganite and dresserite together! This is an important and highly desirable specimen from a closed location. Killer is an understatement. 1,950$
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OKF-565 Dolomite Twin Azcarate Quarry, Egui, Esteribar, Navarra, Spain. Ex Dr. Steve Chamberlain collection. This is such an impressive dolomite that Steve thought it had to be a mislabeled calcite specimen in his collection! A quick acid test confirmed that this is just one super impressive dolomite from the locality which can boast about having the very best dolomite crystals in the world. This is a huge example measuring 8.5 x 8 x 6 cm. This twin has no matrix and a rather small contact area (3 cm) for its size. The crystals are transparent to a considerable depth but highly translucent is the best description for the entire piece. There are a couple of tiny cleave/ chips but none are distracting or seriously impact the importance of the specimen. This is certainly the best dolomite specimen I have ever owned and one of the top three or four which I have seen. Comes with a custom engraved acrylic base. Dolomite crystals this good make all the rest look exceedingly bad! 900$
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OKF-560 Fluorite on Quartz Xie Fan Mine, Jianxi Prov., China. I don’t tend to carry a whole lot of specimens which I would consider to be the best of their kind. This piece however is the best of a find that came out of China two years ago and has yet to be topped. I have seen a few dozen chunks of fluorite and a few good miniatures from this find. Also, I own another, bigger, specimen from this find but it is not as displayable as this one. Specimens from this limited find seem to almost always have damage, too. This specimen measures 10.6 x 7.5 x 6 cm with cuboctahedral fluorites to 5 cm in diameter on milky quartz crystals to 5.8 cm in length. The entire specimen is a floater which was attached to other crystallized rock but has since separated and regrown crystal faces on those broken surfaces. The fluorites are a light sea green color and have interesting inclusions totally unique to this find. Inside the crystals on a lower level (earlier crystal surfaces) there are several forms of inclusions. The white spots could be anything, most likely tiny calcites or dolomites. The brown dendritic inclusions however are more complex. No analysis of these is known to me, but I believe they are branching groups of pyrite crystals which in some cases have altered to goethite on their ends (which were likely once exposed to oxygen). The backsides of the fluorites are stepped in growth while the fronts are very clean. Most surfaces look slightly etched (frosted) but this is an overgrowth of cubic crystal faces. There is no damage to this exceptional display piece. This is a world class fluorite specimen form a find which appears to be exhausted. Comes with a custom engraved acrylic base. 2,900$
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OKF-557 Calcite on Quartz Yangangxian Mine, Bai Shi Du, Chen Xhou, Yizhang County, Hunan Prov., China. This killer is by far the best specimen of this material I have seen and I suspect it might even be the best in existence. I picked it up a couple years back and it has been squirreled away until now. This material is rare at the prolific mineral producer, the Yangangxian mine. This one is even better (by far) than the one photographed for the ExtraLapis, Calcite monograph. 10.5 x 9.5 x 9 cm and is a complete ball of tabular light pink calcites over a pair of diverging quartz crystals. Basically only the bases of the quartz crystals are visible and one from a single side which one image shows. The symmetry is wonderful and the crystals of calcite are all damage free! The piece looks to be fragile but it is no problem to handle without damaging the calcites. The specimen sits well and views fine from all sides. This is one of those specimens which could be posted for an outrageous sum of money. I believe a down to Earth price to be… 1,800$
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OKF-419 Azurite Ball Yangchun Mine, Mao Ming, Guangdong Prov., China. China has rarely been able to compete with fine American and South African azurite specimens… pieces like this are an exception. This is the best of these specimens that I have owned over the many years that they have been available. The ball measures 8 cm in diameter and has crystals to 1.8 cm (with most averaging better than a cm each). It is of the highest luster and deepest blue color that can be found for the species anywhere. All sides are equally well mineralized with the exception of one (which has smaller crystals). This damage free ball is a stunning eye catcher in even the most aesthetic display case. Holding this fine piece really brings home how substantial it is. I have sold many higher priced azurites over the years, but I believe this may be the finest azurite I have ever owned. Thankfully the Chinese specimens have not been in as high demand as domestic and African varieties. Comes with a custom engraved acrylic base. A fine value at…1,500$
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OKF-413 Scheelite Xiang Fang Pu Mine, Chen Zhou, Hunan Prov., China. This would be a rare addition to any Chinese collector’s suite. Known for several years, these scheelite crystals rival the Ping Wu specimens in size and form, but are obviously a completely different color. This one is the nicest I have ever seen or am aware of. It measures 8.3 x 7.3 x 8 cm and is a complete floater cluster. The largest crystal is a whopping 6 cm on edge. The luster is very high on this steel gray piece and there is only a small area of contact which is hardly noteworthy and certainly not distracting. Some areas are translucent to transparent but the majority of the specimen is slightly translucent to opaque. When hit with a UV light it fluoresces a wonderful, BRIGHT, blue. It’s not often that one can acquire an absolutely stunning specimen which is the best of its kind for a price this low. This would rank among the very best scheelites to be found anywhere in the world. Comes with a custom engraved acrylic base. 1,700$
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OKF-228 Aquamarine/ Apatite/ Albite/ Quartz/ Muscovite/ and Unknown Baha, Shigar Valley Baltistan, N.A., Pakistan. I have recently reacquired this fine piece from a collector liquidating his specimens. Just shy of one half a foot of aquamarine coated with a diversity of accessory minerals. This 15 cm single terminated main aqua is truly unique with nice pink apatites, snow white albite (classic "albite jacket") climbing its backside and lots more. The clear/ cloudy double terminated quartz is 3 cm, muscovite book a cm and the pink apatites are up to almost 2 cm each. Some tiny black (unknown) crystals are in the mix, as well. Several double terminated aquas in parallel growth near the termination of the main crystal. There are two invisible repairs otherwise damage free. This is a very special piece for both its form and the uncommon association. I don't care for custom acrylic bases but this is one specimen that would benefit greatly from having one. An impressive specimen to see in person. A true centerpiece for any gem collection and not at a "stupid" price... 2,500$
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OKF-373 Pyrite Bar St. Joe Lead District, Missouri. Ex Anthony P. Dunn collection. Now here is a really serious specimen for the collector of classic American minerals. This specimen measures 13.5 cm in length it is 6.7 cm wide and its base. It averages approximately 4 cm in thickness and is fully terminated on all sides including its base. There is a single minor white dolomite crystal which is the only accessory mineral present. The bar is very stable standing on end for display and is slightly curved in form. I can't say enough about this piece’s rarity and aesthetics. It is one of those amazing pieces which is seldom seen in the mineral market especially in large damage free pieces like this. There is another collection number on the base of the piece but my guess is that this specimen was mined in the mid-1970s. They don't get much better than this so I suspect this one should go fast even though it's an expensive piece of pyrite. Comes with a custom engraved acrylic base. $1600
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OKF-225 Fluorite Madoc, Ontario, Canada. Ex Dr. Steve Chamberlain collection, previously and the Dr.George Robinson collection. This is a wonderful old times specimen with a large primary fluorite crystal measuring 7.2 cm on edge with other fluorites on massive fluorite and quartz matrix. This piece displays beautifully and has beautiful surface features unique to fluorites from this area of Canada. Minor brown internal inclusions (hydrocarbons?) Can be seen clearly. Very gemmy crystals slightly modified by octahedrons which show mixed colors internally, clear to white, green and pink. An exceptional Canadian fluorite $1600
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OKF-222 Analcime, Aegirine, Natrolite, Serandite, Rhodochrosite, Byssolite Mt. St-Hilaire, Québec Canada. Where else besides Mt St-Hilaire can one come up with a combination of species in one specimen such as this! This huge museum grade specimen measures 15 x 12.5 x 8 cm. The largest crystals are 6 cm in diameter. The piece stands on edge beautifully for display at is probably a shocker to anyone who thinks of Mt St.-Hilaire has been a location for micros only. I won't go into detail on all the crystal species measurement’s but let's suffice to say that all are easy to find and well formed. The piece has a medium level luster and I find no damage. This is a museum grade specimen at a manageable collector's price. $595
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OKE-034 Tourmaline with Lepidolite Paproc, Kunar (Nuristan) Prov., Afghanistan. This fine, pink, striated tourmaline crystal is translucent/ transparent and has a thin blue green termination layer. This outstanding fan shaped crystal measures just shy of 10 cm long and is 5.5 cm wide at its termination and is 2.3 cm thick. There is contact on the backside of the crystal which is minimal. The display faces are very nice, damage free as is the termination. As with all the other tourmalines described her the lepidolites are well formed and translucent. Lots of tiny rider tourmalines in base and sides of main crystal. Displays upright on an acrylic base. A relatively serious tourmaline for the discriminating collector. Comes with a custom engraved acrylic base. 1,250$
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OKD-271 Aquamarine on Muscovite Chumar Bakhoor, Nagar, Northern Areas, Pakistan. Wonderful double terminated crystal aqua on a well trimmed base of muscovite blades. The double terminated aqua measures 6 cm long by 5 cm wide. The specimen could probably be displayed several different ways with good results. Even light blue color with lots of veils internally. There is a minor etched pink fluorite on the opposite side as the aqua in the mica. It is small measuring only .7 cm. The top termination has a couple very tiny abrasions which are barely noticeable on a crystal of this magnitude. Backside of plate has been trimmed and carved perfectly so it displays well. This is a fine specimen worthy of a good home. Comes with a custom engraved acrylic base. A major specimen without a major aqua price. 2,000$
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OKD-630 Fluorite (Tetrahexahedral Crystal Form) and Barite Ana Mine, also known as Ana Berbes Location, Berbes, Spain. Ex. Bob Borofsky Collection. An old, rare find that is seldom represented in even the top comprehensive fluorite, Spanish or European collections. Most collectors are not even familiar with this old mine which was once close to the Berbes locale with which every fluorite collector is now acquainted. This one is a fine domed cluster of purple tetrahexahedral crystals to 1.7 cm on edge and white barites to 1.2 cm on edge. The fluorite range from small and gemmy to larger with modified surfaces which take on the appearance of being etched. Below these are other fluorites which are mostly obscured and more yellowish in color and phantomed. This is a fine and rare specimen with only a single barite blade being partially missing. 10 x 8 x 5 cm overall size. 2,000$
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OKD-379 Copper Phoenix Mine, Michigan. Ex. Nancy Collins Collection. Here is certainly the nicest copper specimen I have ever had the privilege of handling. It measures 11.5 x 9.5 cm and is far more three-dimensional than the photos seem to indicate. The specimen is illustrated in Teresa Kennedy's book, "Gems of Wisdom, Gems of Power". It branches out in several directions with large crystals to 4 cm in diameter. The piece has a wonderful light patina and is textbook in form. I have photographed the specimen without a stand whereas it displays best with one. When displayed the piece should be rotated 90 degree from the position in which I have photographed it (photographed correctly on base). That way the small crystals are at its base and the largest crystals stand up and branch outward on the top of the specimen. The specimen is a free-floating pocket specimen with only one spot that could potentially be a point of attachment to matrix. There is no damage visible even with the aid of magnification. It would have a hard time being better in any way. I searched all the top dealers and the Michigan specialists at the Tucson show this year and failed to find a specimen that stacked up to this one. I could go on and on about how nice this piece is but it really needs to be seen to be appreciated. Comes with a custom engraved acrylic base. Without a doubt this is of museum caliber. 9,800$
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OKD-381 Prehnite on Copper in Calcite Quincy Mine, Michigan. Ex. Nancy Collins Collection. Here is a smaller cluster (5 cm) with very nice copper phantoms. One calcite tip is cleaved but difficult to notice in person or photos. Crystals are well formed, double terminated and lightly striated. It takes a nice, yet realistic, photograph. The piece is one of the finest miniatures I have ever offered. 2,800$
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OKD-631 Fluorite (Tetrahexahedral Crystal Form) and Barite Ana Mine, also known as Ana Berbes Location, Berbes, Spain. Ex. Bob Borofsky Collection. An old, rare find that is seldom represented in even the top comprehensive fluorite, Spanish or European collections. Most collectors are not even familiar with this old mine which was once close to the Berbes locale with which every fluorite collector is now acquainted. This specimen is simple amazing for the location. It measures a whopping 17 x 10 cm and is a two sided plate which is about 8 cm thick. It sits up nicely on edge for display and is mineralized on about 50% of its edges. The purple fluorites have a high degree of modification and so the surfaces appear frosted. Inside the fluorites are fine yellow phantoms. The white barites approach 2 cm and the only damage to the specimen are a couple of cleaved barites which are tough to find. This is a wonderful museum piece from a rare, old European locale. Extremely tough to get and desirable specimen. 6,500$ firm.
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OKD-550 Rhodonite on Galena Broken Hill, New South Wales, Australia. Ex. Nancy Collins Collection. A beautiful 2 cm crystal erupts vertically out of galena. The crystal has gemmy regions with a good deal of internal flaws. Although it may not appear gemmy, keep in mind that I never backlight my specimens like the competition loves to do. You will be pleased with its color and clarity. Double terminated with the basil termination being almost entirely buried in the galena. The upper termination is damage free, fully exposed, complex and interesting. Some faces are sharp and others morphed (or smoothed over) which is normal for these crystals. Prism faces are all very clean. 3.2 x 1.6 x 1.6 overall. Tiny rhodonite crystals climb up one side of the galena matrix. A top, competitive thumbnail specimen. Very rare to see these for sale and almost unheard of in this quality. Classic location, exceptionally well formed and a very rare and difficult to acquire specimen. 3,100$
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OKD-378 Barite on Calcite Elk Creek, Meade Co., South Dakota. Ex. Nancy Collins Collection. Certainly a classic American specimen that is uncommon to find on today’s market. This one has a pair of parallel growth crystals which are transparent and a rich brown color. The barites are up to 4.3 cm each rising off well formed, yellow calcites. One crystal has a tip ding on its backside. The specimen displays best with support so I have it attached to an acrylic plate at this time. It is 7.5 x 5 x 2 cm in overall size and there is an exceptional luster to the barites. 950$
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OKD-365 Fluorite Tsumcorp Mine, Tsumeb, Otjikoto Region, Namibia, S.W. Africa. Ex. Nancy Collins Collection. Circ. 1970. A nice large plate of gree crystals to 2.2 cm on edge. The specimen measures 14 x 10 cm and is up to 4.5 cm thick. Beautiful blue phantoms and some incusions of a unknown mineral (maybe siderite). One ding on a single cube, otherwise clean. A fine classic…1,495$
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OKD-368 Azurite and Malachite Copper Queen Mine, Bisbee, Arizona. Ex. Nancy Collins Collection. This large specimen appears to be from a seam where the display face had a few minor contacts with the opposing wall. These are the brown spots where matrix shows through, not damage. The crystals are sharply formed azurites and malachites between .2 and .5 cm each in length. The entire specimen measures 16.5 x 8.5 x 6 cm and has the one primary display face. It sits up well for display. There is some mineralization on the back but there is really only one display face. A nice large North American classic. 5,000$
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OKD-369 Azurite and Malachite Copper Queen Mine, Bisbee, Arizona. Ex. Nancy Collins Collection. This block of azurite matrix has large regions which are hollowed out and filed by azurite crystalline druze. Measures 8 x 9 x 6 cm. Very bright. 1,500$
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OKB-575 Amethyst Blue Points Mine, Near Thunder Bay, Ontario, Canada. Oh my! 30 cm dome of clean hematite included amethyst crystals that I recovered and horded away in my collection for many years. Have to part with this beauty now. Seen below is a photo of its recovery from its home in an exceptional 10 foot long pocket. Maybe longer...we never found the end of this huge vug! Exceptional in all regards. The photos do not do this specimen justice. It has a wonderful luster and only a couple very tiny spots of damage which are difficult to detect. 3,200$
By far, the best specimen of the trip!